8 Maintenance
Precautions
Before starting work, make sure that the safety instructions in the chapter Introduction and
Safety on page 3 have been read and understood.
DANGER: Crush Hazard
Moving parts can entangle or crush. Always disconnect
and lock out power before servicing to prevent
unexpected startup. Failure to do so could result in
death or serious injury.
Equipment
locked out by
Name .......................
DANGER
WARNING: Biological Hazard
Infection risk. Rinse the unit thoroughly with clean water before working on it.
CAUTION: Crush Hazard
Make sure that the unit cannot roll or fall over and injure people or damage property.
Make sure that you follow these requirements:
• Check the explosion risk before you weld or use electrical hand tools.
• Allow all system and pump components to cool before you handle them.
• Make sure that the product and its components have been thoroughly cleaned.
• Make sure that the work area is well-ventilated before you open any vent or drain
valves, remove any plugs, or disassemble the unit.
• Do not open any vent or drain valves or remove any plugs while the system is
pressurized. Make sure that the pump is isolated from the system and that pressure is
relieved before you disassemble the pump, remove plugs, or disconnect piping.
Precautions for handling permanent magnet motors
WARNING: Magnetic Hazard
Magnetic fields can damage cardiac pacemaker and other medical implants. Stay clear of
the permanent-magnet rotor, when disassembled from the motor.
WARNING: Electrical Hazard
The permanent-magnet motor generates voltage when the shaft rotates, even if power
sources are disconnected. Never perform any electrical work if the shaft could rotate.
CAUTION: Crush Hazard
The rotor is a permanent magnet. Do not use tools which can be attracted to magnetic
fields near the rotor, and do not allow the rotor to come near steel items.
Assembly and disassembly of permanent-magnet synchronous motors must be
performed by qualified personnel and according to relevant instructions.
8 Maintenance
34 Concertor
™
6020 Installation, Operation, and Maintenance Manual
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